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ISD1016AP Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers |
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ISD1016AP Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers |
3 / 20 page Product Data Sheets ISD1000A Series 1–3 1 to achieve longer recording durations. The non- volatile storage array is based on production- proven, low-power CMOS EEPROM technology. The highly integrated ISD1000A Series contains all the basic functions required for high-quality voice Recording and Playback. The noise-cancel- ling Microphone Preamplifier and Automatic Gain Control (AGC) record both low-volume and high- volume sounds. The AGC attack and release times are adjusted by an external resistor and capacitor. Antialiasing is performed by a continu- ous fifth-order Chebyshev filter, requiring no exter- nal components or clocks to give toll-quality reproduction. The low corner of the passband is user-settable by two external capacitors. The devices contain their own temperature-stabilized timebase oscillator. The ISD1000A devices drive a speaker directly through differential outputs. This boosts power by four times and eliminates the need for a series capacitor or an output amplifier. The device will operate from a single power supply or from batter- ies. The device also includes a power down func- tion for applications where minimum power consumption is critical. The CMOS-based design, combined with the nonvolatile storage array, assures the lowest possible overall power con- sumption. On-chip control functions make the ISD1000A Series very easy to use in a wide array of applica- tions. Each device offers a variety of operating modes and interface options. The devices may be used in applications that require little more than a few switches and a battery. The devices may also be integrated into electronic systems where digital addresses can be provided for more sophisti- cated message addressing and control. The ISD1000A array is organized into 160 segments. Addresses A0 through A7 provide access to each segment in the array for message addressing. Addressing provides the capability of construct- ing messages by combining stored phrases and sounds. PIN DESCRIPTIONS Voltage Inputs (VCCA, VCCD) To minimize noise, the analog and digital circuits in the ISD1000A Series devices use separate power busses. These voltage busses are brought out to separate pins and should be tied together as close to the supply as possible. In addition, these supplies should be decoupled as close to the package as possible. Ground Inputs (VSSA, VSSD) The ISD1000A Series of devices utilizes separate analog and digital ground busses. These pins should be tied together as close to the package as possible and connected through a low-imped- ance path to power supply ground. Power Down Input (PD) When not recording or playing back, the PD pin should be pulled HIGH to place the part in a very low power mode (see ISB specification). When EOM pulses LOW for an overflow condition, PD should be brought HIGH to reset the address pointer back to the beginning of the Record/Play- back space. SSD SSA M0/A0 M1/A1 M2/A2 M3/A3 M4/A4 M5/A5 NC NC A6 A7 AUX IN V V SP+ V P/R XCLK EOM PD CE NC ANA OUT ANA IN AGC MIC REF MIC V SP– CCD CCA DIP/SOIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 ISD1000A SERIES PINOUTS 06.DataBook_1000A Dsht Page 3 Friday, September 27, 1996 10:44 AM |
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